mysql_secure_installation - MariaDB Knowledge Base
From MariaDB 10.4.6, mariadb-secure-installation is a symlink to mysql_secure_installation.
From MariaDB 10.5.2, mysql_secure_installation is the symlink, and mariadb-secure-installation the binary name.
mysql - ERROR 1698 (28000): Access denied for user 'root'@'localhost' - Stack Overflow
Some systems like Ubuntu, mysql is using by default the UNIX auth_socket plugin.
Basically means that: db_users using it, will be "auth" by the system user credentias. You can see if your root user is set up like this by doing the following:
$ sudo mysql -u root # I had to use "sudo" since is new installation
mysql> USE mysql;
mysql> SELECT User, Host, plugin FROM mysql.user;
+------------------+-----------------------+
| User | plugin |
+------------------+-----------------------+
| root | auth_socket |
| mysql.sys | mysql_native_password |
| debian-sys-maint | mysql_native_password |
+------------------+-----------------------+
As you can see in the query, the root user is using the auth_socket plugin
There are 2 ways to solve this:
mysql_native_password plugindb_user with you system_user (recommended)Option 1:
$ sudo mysql -u root # I had to use "sudo" since is new installation
mysql> USE mysql;
mysql> UPDATE user SET plugin='mysql_native_password' WHERE User='root';
mysql> FLUSH PRIVILEGES;
mysql> exit;
$ sudo service mysql restart
Option 2: (replace YOUR_SYSTEM_USER with the username you have)
$ sudo mysql -u root # I had to use "sudo" since is new installation
mysql> USE mysql;
mysql> CREATE USER 'YOUR_SYSTEM_USER'@'localhost' IDENTIFIED BY 'YOUR_PASSWD';
mysql> GRANT ALL PRIVILEGES ON *.* TO 'YOUR_SYSTEM_USER'@'localhost';
mysql> UPDATE user SET plugin='auth_socket' WHERE User='YOUR_SYSTEM_USER';
mysql> FLUSH PRIVILEGES;
mysql> exit;
$ sudo service mysql restart
Remember that if you use option #2 you'll have to connect to mysql as your system username (mysql -u YOUR_SYSTEM_USER)
Note: On some systems (e.g., Debian stretch) 'auth_socket' plugin is called 'unix_socket', so the corresponding SQL command should be: UPDATE user SET plugin='unix_socket' WHERE User='YOUR_SYSTEM_USER';
Update: from @andy's comment seems that mysql 8.x.x updated/replaced the auth_socket for caching_sha2_password I don't have a system setup with mysql 8.x.x to test this, however the steps above should help you to understand the issue. Here's the reply:
One change as of MySQL 8.0.4 is that the new default authentication plugin is 'caching_sha2_password'. The new 'YOUR_SYSTEM_USER' will have this auth plugin and you can login from the bash shell now with "mysql -u YOUR_SYSTEM_USER -p" and provide the password for this user on the prompt. No need for the "UPDATE user SET plugin" step. For the 8.0.4 default auth plugin update see, https://mysqlserverteam.com/mysql-8-0-4-new-default-authentication-plugin-caching_sha2_password/
No need of sudo
The database is initialised with 2 all-privilege accounts: the first one is "root" which is inaccessible and the second one with your user name (check with command whoami).
To enable access to root account, you need to login with your user name
mysql -u $(whoami)
and manually change password for root
use mysql;
set password for 'root'@'localhost' = password('YOUR_ROOT_PASSWORD_HERE');
flush privileges;
quit
Login as 'root'
mysql -u root -pHow to Completely Remove Mysql and Install MariaDB 10 (linoxide.com)
We first need to properly uninstall MySql with all its dependencies
# yum list installed | grep mysql
mysql-community-client.x86_64 5.6.37-2.el7 @mysql56-community
mysql-community-common.x86_64 5.6.37-2.el7 @mysql56-community
mysql-community-libs.x86_64 5.6.37-2.el7 @mysql56-community
mysql-community-release.noarch el7-5 installed
mysql-community-server.x86_64 5.6.37-2.el7 @mysql56-communityTo remove a package with it's dependencies , you need to install yum plugin called: remove-with-leaves. To install it type:
# yum install yum-plugin-remove-with-leavesNow to remove a package with its dependencies: yum remove package_name --remove-leaves as below
# yum remove mysql-server --remove-leaves
Loaded plugins: fastestmirror, remove-with-leaves
Resolving Dependencies
--> Running transaction check
---> Package mysql-community-server.x86_64 0:5.6.37-2.el7 will be erased
--> Finished Dependency Resolution
removing libaio-0.3.109-13.el7.x86_64. It is not required by anything else.
removing mysql-community-client-5.6.37-2.el7.x86_64. It is not required by anything else.
removing mysql-community-libs-5.6.37-2.el7.x86_64. It is not required by anything else.
removing mysql-community-common-5.6.37-2.el7.x86_64. It is not required by anything else.
--> Running transaction check
---> Package libaio.x86_64 0:0.3.109-13.el7 will be erased
---> Package mysql-community-client.x86_64 0:5.6.37-2.el7 will be erased
---> Package mysql-community-common.x86_64 0:5.6.37-2.el7 will be erased
---> Package mysql-community-libs.x86_64 0:5.6.37-2.el7 will be erased
--> Finished Dependency Resolution
Dependencies Resolved
======================================================================================================================================================
Package Arch Version Repository Size
======================================================================================================================================================
Removing:
libaio x86_64 0.3.109-13.el7 @base 38 k
mysql-community-client x86_64 5.6.37-2.el7 @mysql56-community 89 M
mysql-community-common x86_64 5.6.37-2.el7 @mysql56-community 2.1 M
mysql-community-libs x86_64 5.6.37-2.el7 @mysql56-community 9.2 M
mysql-community-server x86_64 5.6.37-2.el7 @mysql56-community 251 MWe also need to uninstall the mysql-community-release repo
# yum remove mysql-community-release-el7-5
Loaded plugins: fastestmirror, remove-with-leaves
Resolving Dependencies
--> Running transaction check
---> Package mysql-community-release.noarch 0:el7-5 will be erased
--> Finished Dependency ResolutionNow we need to remove MySQL default data directory /var/lib/mysql from our system. If you don't see the directory in the default location, it means that it changed to some other place which you can find in /etc/my.cnf file with variable datadir.
In our case, we will delete the /var/lib/mysql directory from the system but you can prefer to rename it in order to keep a backup of the existing files. We will completely clean up our installation directory.
# rm -rf /var/lib/mysql/# rm -rf /etc/my.cnfTo install MariaDB 10, we must add the repo on your server. We will create a MariaDB repo file under /etc/yum.repos.d/MariaDB.repo with the content below
[mariadb]
name = MariaDB
baseurl = http://yum.mariadb.org/10.5.10(10.3)/centos7-amd64
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
gpgcheck=1now we can install our packages
# yum install MariaDB-server MariaDB-client
Loaded plugins: fastestmirror, remove-with-leaves
Loading mirror speeds from cached hostfile
* base: mirrors.linode.com
* epel: mirrors.kernel.org
* extras: mirrors.linode.com
* rpmforge: mirrors.evowise.com
* updates: mirrors.linode.com
Resolving Dependencies
--> Running transaction check
---> Package MariaDB-client.x86_64 0:10.1.26-1.el7.centos will be installed
--> Processing Dependency: MariaDB-common for package: MariaDB-client-10.1.26-1.el7.centos.x86_64
---> Package MariaDB-server.x86_64 0:10.1.26-1.el7.centos will be installed
--> Processing Dependency: galera for package: MariaDB-server-10.1.26-1.el7.centos.x86_64
--> Running transaction check
---> Package MariaDB-common.x86_64 0:10.1.26-1.el7.centos will be installed
---> Package galera.x86_64 0:25.3.20-1.rhel7.el7.centos will be installed
--> Finished Dependency Resolution
Dependencies Resolved
======================================================================================================================================================
Package Arch Version Repository Size
======================================================================================================================================================
Installing:
MariaDB-client x86_64 10.1.26-1.el7.centos mariadb 39 M
MariaDB-server x86_64 10.1.26-1.el7.centos mariadb 103 M
Installing for dependencies:
MariaDB-common x86_64 10.1.26-1.el7.centos mariadb 123 k
galera x86_64 25.3.20-1.rhel7.el7.centos mariadb 8.0 M
Transaction Summary
======================================================================================================================================================
Install 2 Packages (+2 Dependent packages)
Total size: 150 M
Total download size: 150 M
Installed size: 647 M
Is this ok [y/d/N]: y
Downloading packages:
(1/3): MariaDB-10.1.26-centos7-x86_64-client.rpm | 39 MB 00:00:02
(2/3): galera-25.3.20-1.rhel7.el7.centos.x86_64.rpm | 8.0 MB 00:00:01
(3/3): MariaDB-10.1.26-centos7-x86_64-server.rpm | 103 MB 00:00:12
------------------------------------------------------------------------------------------------------------------------------------------------------
Total 12 MB/s | 150 MB 00:00:12
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : MariaDB-common-10.1.26-1.el7.centos.x86_64 1/4
Installing : MariaDB-client-10.1.26-1.el7.centos.x86_64 2/4
Installing : galera-25.3.20-1.rhel7.el7.centos.x86_64 3/4
Installing : MariaDB-server-10.1.26-1.el7.centos.x86_64 You can check the status as below
# yum list installed | grep mariadb
MariaDB-client.x86_64 10.1.26-1.el7.centos @mariadb
MariaDB-common.x86_64 10.1.26-1.el7.centos @mariadb
MariaDB-server.x86_64 10.1.26-1.el7.centos @mariadb
MariaDB-shared.x86_64 10.1.26-1.el7.centos @mariadb You can't have MySQL and MariaDB installed on the same server. So you need to do a complete uninstallation. You must notice that when having MariaDB installed, if you need to remove it in order to install MySQL, don't forget to remove the repo otherwise MySQL will be not able to be installed.
https://stackoverflow.com/questions/1814532/1071-specified-key-was-too-long-max-key-length-is-767-bytes
run this query before your query:
SET @@global.innodb_large_prefix = 1;
this will increase limit to 3072 bytes.
# mysql -u root -p --default-character-set=utf8 databasename
mysql> SET names 'utf8'
mysql> SOURCE bkp.sqlMã truy cập dài hạn https://developers.facebook.com/docs/facebook-login/guides/access-tokens/get-long-lived/ https://community.n8n.io/t/re...
